That's correct Paul: Instead of showing a non-informative 404 page, we provide a list of similar articles. But you're right of course: we should place a message on top of that! I put it on our todo list. Thanks!

An expert is a man who has made all the mistakes which can be made, in a narrow field.Niels Bohr (1885-1962)

Katie - articles by new authors are shown under "NEW", even if they haven't been approved yet. Once we get around to checking out these pages, we may send them back for corrections, or reject them. That's when they disappear - some of them forever, others until corrections have been made and approved.